SOLVED Strange "breathing" shadows

[Kniker97]

I'm trying to perform a track conversion and I have made many progress, but there is something very strange that happens with the shadows. I have tried different cars, but same result.
P.S. This happens to all track's shadows
Here is the video dimonstration: https://gfycat.com/GrippingAcidicAmericanshorthair

 

[Kniker97]

No one can help me?

 

[Coutie]

No one can help me?

Have you tried it out in the main game and not devmode?

 

[Kniker97]

Have you tried it out in the main game and not devmode?

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Honestly... nope but still strange, I'll try

 

[Bernd]

If nobody have ever had such a problem, it's hard to help.
In such cases, i always would suggest to upload your mod and offer a link, that we can try to reproduce it and try to find the reason for the problem.

 

[Kniker97]

Problem solved, a moveable object in the sky (helicopter) was a shadow caster, shadow instance removed and now work perfectly fine